Centrifugal machine.



PATBNTED JAN. 6, 1903. J. J. BERRIGAN. OENTRIPUGAL MACHINE.

APPLICATION FILED MAY 7, 1902.

2 SHEETS-SHEET 2 N0 MODEL.

ENTOR ,wynm BY ,X.

ATTORNEY and 17 not being shown.

UNrrnn Srnrns Parser Fries.

JOHN JOSEPH BERRIGAN, OF ORANGE, NEW JERSEY.

CENTRIFUGAL MACHINE.

SPECIFICATION forming part of Letters Patent No. 717,803, dated January6, 1903.

Application filed May 7,1902. Serial No. 106,283. (No model.)

To all? whom it may concern:

Be it known that I, J OHN Josnrn BERRI- GAN, a citizen of the UnitedStates, residing at Orange, Essex county, New Jersey, have invented anew and useful Improvement in Centrifugal Machines, of which thefollowing is a specification.

My invention is an improvement upon the type of machine for separatingsolids and liquids which is set forth in United States Letters PatentNo. 667,926, granted to me July 9, 1901. l

The invention relates to means for preventing the access of the solidconstituent to the openings in the wall of the receptacle for thematerial to be separated, the said openings serving to establish liquidcommunication between said receptacle and the outer drum; and myinvention consists in a rotary wheel, preferably rimless, suitablydisposed in said receptacle.

In the accompanying drawings, Figure 1 is a vertical section of themachine diametrically, the drum, the lower portion of the standard 1,and driving-pulleys for the shafts 4 Fig. 2 is a partial plan view ofthe rotary guard-wheel having its arms curved. Fig. 3 is a partial planview of the same having its arms straight. Fig. 4 is a horizontalsection on the line y y of Fig. 1. Fig. 5 is an enlarged sectional Viewof the lower part of the separating chamber 11 and guard-wheel therein.

Similar characters of reference indicate like parts.

1 is the standard, preferably integrally formed with the cup 2.

Passing through the gland 3 in standard 1 is the hollow shaft 4, whichat its upper end carries the drum 5. Said shaft is supported in standard1 and is rotated by belt and pul-. ley, as indicated in Fig. 4. Theupper edge of drum 5 is threaded to receive the flanged cover6,'centrally disposed in which is a plug 7, through which passes thefeed-pipe 8. On the under side of cover 6 is secured the plate 9, inwhich are channels 10, into which channels at their junction the feedfalling by gravitythrough pipe 8 is delivered. The outer ends of saidchannels are open.

Eccentrically disposed within the drum 5 is a separating vessel 11,having in its wall an aperture 12. correspondingly placed in the wall ofdrum 5 is a smaller aperture 13. Between vessel 11 and drum 5 is a plate14,hav-

ing a tapered channel 15*, connecting apertures 12 and 13.

Pivoted centrally in vessel 11 is a shaft 15, having at its lowerportion a pinion 16, which engages with a pinion 16* on the upper end ofshaft 17. Shaft 17 passes through the hollow shaft 4.- and isindependently rotated by a belt and pulley. On shaft 17 is a horizontalwheel 18, having a central hub or disk 19 and radial arms 20. Said armsmay be straight, as shown in Fig. 3, or curved, as shown in Fig. 2. Whenthe wheel is made rimless', as here shown, the outerextremities of saidarms closely approximate the inner periphery of vessel 11. Above thewheel 18 the shaft 17 is of enlarged diameter andhas secured to itradial arms 23, each arm carrying a scrapingblade 24. Beneath the wheel18 short inclined sections of pipe 25, extending through the wall ofvessel 11, establish liquid communication between vessel 11 and drum 5.Also communicating with the interior of vessel 11 and passing throughthe cover 6 is a liquid-delivery pipe 26. The pipe 27 in the bottom ofcup 2 is a drain for the escape of any liquid which may drip into saidcup.

The operation of the machine is as follows: By means-of the rotatingshaft 4 the drum 5 is set in rapid revolution, carrying with it theeccentrically placed separating vessel 11. The combined solid and liquidmaterials to be separated are fed inthrough the pipe 8 to the channels10 and thence ejected by centrifugal force against the inner peripheryof vessel 11. The liquid material, as fully explained in my patentaforesaid, then forms a ring within the drum 5 and vessel 11, the innercircumference of which is indicated by a dotted line at (t, Fig. 4c, andthe solid material is deposited on the inner surface of vessel 11 overthe are c b d, Fig. 4. The liquid rises vertically upward and finallyescapes at the pipe 26. The solid material deposited as aforesaid isengaged by the scraper-blades 24, which by reasonof the rotation ofshaft 17 and of the intermediate gearing 16 and 16* are now movingaround the inner periphery of vessel 11. These blades convey the solidmaterial to the aperture 12 in vessel 11,whence by centrifugal force itis projected through the passage 15 in plate 4: and the opening 13 inthe drum-wall, and so out of the machine.

The principal feature of my present invention is the wheel 18, disposedin the vessel 11 and above the tube-sections 23. The object is toprevent any solid material from entering said tube-sections, andpossibly thus impairing liquid communication between vessel and drum. Itwill be obvious that any solid material falling upon said wheel,whetheron the hub or between the arms, will at once be thrown outwardcentrifugally against the inner periphery of vessel 11 and not be permitted to pass through the interstices between the arms. When the wheel, ashere illustrated, is made rimless, the ends of the latter, moving closeto said inner periphery of vessel 11, act as scraping-blades to conveysaid material around to opening 12.

The liquid from pipe 26 and the solid material from opening 13 may passinto any suitable receptacles placed to receive it. I show here a hoodwhich has two compartments respectively for the reception of the solidand liquid constituents. Said hood consists of two hollow conical frusta28 and 29, secured together, open above, and provided with a horizontalbase-plate 30, which rests on the upper edge of cup 2. In said plate areopenings 31. The space between the frusta 2S and 29 is closed and isprovided with a tube 32. Into this space the pipe 26 delivers theseparated liquid, which finally escapes at tube 32. The separated solidescaping at opening 13 in drum 5 strikes on the inclined inner surfaceof the lower frustnm 28, and so is diverted downwardly and out at theopenings 31.

I claim 1. In a centrifugal machine, a drum rotary on a vertical aXis, areceptacle for combined solid and liquid constituents to be separateddisposed therein'and having in its wall openings establishing liquidcommunication with said drum, and a rotary Wheel having radial armsdisposed Within said receptacle above said openings.

2. In a centrifugal machine, a drum rotary on a vertical axis, areceptacle for combined solid and liquid constituents to be separateddisposed therein and having in its wall openings establishing liquidcommunication with said drum and a rotary wheel having curved armswithin said receptacle and above said openings.

3. In a centrifugal machine, a drum rotary on a vertical axis, areceptacle for the combined constituents to be separated, tubularconduits in the wall of said receptacle and a rotary rimless wheel insaid receptacle above said conduits.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN JOSEPH BERRIGAN.

Witnesses:

TH. \VAWRINSKY, NILs STRANDELL.

